The permanent magnet design is the key to the high efficiency and high power density of the Sparks Mol Dura-Drive SPM motorized pulleys. The motors are available in 3.19” and 4.39” diameters and can be run either sensor-less in speed control mode or with feedback in combination with a servo drive in position, speed or torque control (sensor-less position control is also possible with some servo drives). The Dura-Drive SPM motors are aimed at applications in logistics with high dynamic requirements or as replacements for servo motors in machine building and general automation. They can also be used as a space-saving alternative to a gear motor.
Dura-Drive SPM pulleys run OIL-FREE with no possibility of oil leaks. This solves one of the main problems of motorized pulleys, especially in food applications. They have a simple, one-piece design with all moving parts enclosed in the pulley shell.